Structural Characteristics Analysis of Overlying Rocks and Prevention Measures with a Long-Wall Face Passing Across Abandoned Roadways: A Case Study

Figure 8

Evolution laws of bending moment and vertical deflection in the main roof. (a) Bending moment ( = 5 m), (b) bending moment ( = 2 m), (c) bending moment ( = 0 m), (d) vertical deflection ( = 2 m), (e) vertical deflection ( = 5 m), and (f) vertical deflection ( = 10 m).

(a)

(b)

(c)

(d)

(e)

(f)